baber/WOPTO huggingface dataset:
Patent KR-20010024148-A (KR)
IPC: C12N15/33
Filed: 1998-09-18
Abstract: The vaccines and methods of the present invention are based on deletion mutations in the protein transmembrane domains of membrane-enveloped viruses. The strategy for production of these mutations is based on the fact that unlike mammalian cell membranes, the membranes of insect cells contain no cholesterol; thus are thinner than mammalian membranes. Many membrane-coated viruses have membrane glycoproteins on their surface which are responsible for identifying and infecting target cells. These membrane glycoproteins have hydrophobic membrane-spanning domains which anchor the proteins in the membrane bilayer. The membrane-spanning domains of these transmembrane proteins must be long enough to reach from one side of the bilayer to the other in order to hold the proteins in the membrane. Provided is a vaccine, a method of producing this vaccine, and a method of using this vaccine, based on the differences between membranes of viruses replicated in invertebrates and membranes of viruses replicated in vertebrates.
Patent KR-20010024292-A (KR)
Title: 정렬된 중간다공성 박막
IPC: C04B41/45
Filed: 1998-09-25
Abstract: 본 발명은 기공 크기가 약 0.8-20nm 범위이고 고도로 잘 정렬된 미세구조와,  막 증착시 형성된 정렬된 미셀 또는 액정형 유기-무기 전구체 구조로부터 유도된 다공도를 갖는, 지지된 막들을 제조하는 방법에 관한 것이다. 연속적인 코팅 공정에서, 독특한 미세구조와 유니-모달 기공 크기를 나타내는, 광학적으로 투명한, 100-500nm 두께의 막이 수십초만에 형성된다. 이러한 막의 응용범위에는 센서, 멤브레인, 저유전율 인터레이어, 항-반사성 코팅 및 광학용 호스트가 포함된다.
Patent KR-20010031521-A (KR)
Inventor: BOTTCHER ARND
IPC: C01B15/013
Filed: 1998-10-26
Abstract: The invention relates to a method for hydrogenating an anthraquinone compound or a mixture containing two or more anthraquinone compounds using special catalysts, which comprise a metal of the eight subgroup of the periodic table as an active metal.
Patent KR-20010033631-A (KR)
IPC: H03K17/16
Filed: 1999-05-03
Abstract: 본 발명은 전계-효과 트랜지스터를 전환하는 방법 및 장치에 관한 것으로, 전계-효과 트랜지스터는 게이트 단자의 상부에 접속된 RC 엘리먼트(R2, C2)상의 전환에 적합한 제어전압을 인가함으로써 스위칭된다.  이러한 방법 및 장치에서 전계-효과 트랜지스터는 상기 트랜지스터의 스위칭을 위해 전계-효과 트랜지스터의 게이트 단자상에 인가되어야하는 임계전압을 적어도 일시적으로 약간 초과하는 제어전압을 사용하여 스위칭된다.
Patent KR-20010034276-A (KR)
Title: 내면 홈이 형성된 전열관 및 그 전열관용 메탈스트립 가공롤
IPC: B21C37/083
Filed: 1999-10-22
Abstract: 본 발명에 따른 내면 홈이 형성된 전열관은 내면을 관의 축방향 L을 따라 연속하는 복수의 영역 W1, W2로 구분하고, 인접한 영역 W1, W2에는 관의 축방향 L에 대한 리드각 θ, θ', 핀 정상각 α, α', 및 핀 피치 p, p' 중의 적어도 한 가지를 달리하는 핀(fin)(10, 11)을 다수 형성하고, 인접한 영역 W1, 영역 W2 상호의 경계선부(a)를 관의 축방향 L에 대해 사행(蛇行)을 이루게 한 것이다. 
     본 발명의 메탈스트립 가공 롤은 외주면에 홈(20, 21)을 다수 형성한 복수의 롤피스(2a, 2b)를 축방향을 따라 중첩된 상태로 조합하고, 인접한 롤피스(2a, 2b) 상호의 접촉면(c)을 경사면으로 한 것이다.
Patent KR-20010034366-A (KR)
Title: 레이저 마킹방법과 장치 및 마킹된 부재
IPC: B23K26/00
Filed: 1999-11-26
Abstract: 레이저광원으로부터 레이저 비임을 출사한다.  레이저광원으로부터 출사된 레이저 비임을 집광점에서의 비임단면이 그 레이저 비임의 광축에 수직한 제 1의 방향으로 긴 형상을 갖도록 함으로써, 집광점이 피가공부재의 내부에 위치하도록 상기 레이저 비임을 집광하여 집광점 및 그 근방에 크랙을 발생시킨다.  피가공부재내에 콘트라스트를 쉽게 높일 수 있는 마크를 형성할 수 있다.
Patent KR-20010040498-A (KR)
Title: 고막 주위에 위치된 청취 장치
IPC: H04R25/02
Filed: 1999-01-13
Abstract: 본 발명의 청취 장치는 고막 근처의 인간의 외이도에 위치되도록 적용된다.  상기 청취 장치는 실질적으로 단단한 쉘과 상대적으로 유연한 팁 부재를 포함한다.  상기 팁 부재는 음향 신호를 팁 부재를 통해 전달하기 위하여 연장된 통로를 한정하는 공동이 있는 몸체를 포함한다.  팁 부재의 공동이 있는 몸체 부분은 통로의 축이 삽입시 외이도의 축에 실질적으로 순응할 수 있도록, 충분히 변형될 수 있다.  상기 공동이 있는 몸체 부분은 또한 이같은 삽입시 통로의 붕괴를 방지하기 위하여 상당히 단단하다.  공동이 있는 몸체 부분에 의해 한정된 통로의 축은, 삽입 동안에 청취 장치가 도관을 통과할 수 있도록 쉘의 축에 대해 소정의 각으로 이동 가능하다.  귀지 방어 수단 및 수신기 장착 구조뿐만 아니라 조립 방법도 역시 개시되었다.
Patent KR-20010041689-A (KR)
Title: 계량 장치
IPC: B07C5/18
Filed: 1999-03-12
Abstract: 본 발명은 계량할 물체 (E)를 수용하도록 각각 설계된 다수의 그리퍼(gripper)(1)를 포함하는 계량 장치에 관한 것으로서, 각각의 그리퍼(1)는 연결부(connection)(4, 5, 6, 30, 31, 32, 33, 34, 35, 36)를 거쳐 컨베이어(2) 상에 장착되어 그리퍼(1)가 그리퍼 경로를 따라 이동하도록 배열되고, 각각의 그리퍼(1)는 그리퍼 경로의 적어도 일부분에 걸쳐 적어도 하나의 계량 부재(42)의 계량면(8) 상을 이동하는 제1 안내 부재(guide element)(7)를 포함하고, 그리퍼(1) 및 그 내부에 위치된 물체 (E)의 중량이 제1 안내 부재(7)를 거쳐 적어도 하나의 계량 부재로(42)로 이송되고, 각각의 그리퍼(1)와 컨베이어(2) 사이의 연결부(4, 5, 6; 30, 31, 32, 33, 34, 35, 36)는 적어도 하나의 계량면(8)과 직각인 방향으로 특히 낮은 스프링 정수를 각각 가지는 적어도 하나의 가요성 부재(4, 5, 6; 30, 31, 32, 33, 34, 35, 36) 어셈블리를 포함한다.
Patent KR-20010041943-A (KR)
Title: Ｍｌｏ 단백질을 암호화하며 식물에 진균 내성을 부여하는유전자
IPC: C12N15/09
Filed: 1999-03-17
Abstract: 본 발명은 진균성 병원체에 대한 식물의 내성을 조절하는 단백질을 암호화하는 유전자에 관한 것이다.  본 발명은 또한 진균성 병원체에 대해 내성인 형질전환된 식물 및 진균성 병원체에 대해 내성인 식물을 만드는 방법에 관한 것이다.  본 발명은 또한 진균성 병원체에 대한 식물의 내성을 조정하는 추가의 단백질을 암호화하는 추가 유전자를 분리시키는 방법에 관한 것이다.
Patent KR-20010052814-A (KR)
Title: 치료제
IPC: C07D307/24
Filed: 1999-06-25
Abstract: 2,5-디하이드록시테트라하이드로-2-푸란카복실산, 그 유도체, 양자의 광학 이성질체 및 그들의 약제학적으로 허용가능한 염으로부터 선택되는 알도스 환원효소 억제 활성을 갖는 적어도 하나의 화합물을 함유함을 특징으로하는, 알도스 환원효소의 작용에 기인한 질병에 대한 치료 또는 예방제 및 알도스 환원효소 억제제.
Patent KR-20020057378-A (KR)
Title: Gap-filling method of semiconductor device using atomic layer deposition method
Inventor: YOON JONG HO
IPC: H01L21/20
Filed: 2001-01-04
Abstract: PURPOSE: A method for gap-filling a semiconductor device by an atomic layer deposition(ALD) method is provided to greatly improve step coverage by controlling the thickness of a deposition layer, and to increase reliability by preventing a void phenomenon occurring in a gap-filling process for the semiconductor device. CONSTITUTION: A semiconductor substrate having a gap is placed in a reaction receptacle. The first reaction gas is injected to the reaction receptacle and is absorbed to the semiconductor substrate to generate a reaction material. Purge gas is injected into the reaction receptacle to purge the unabsorbed first reaction gas. The second reaction gas is injected into the reaction receptacle to react with the reaction material so that a thin film is formed. Purge gas is injected into the reaction receptacle to purge the second reaction gas not reacting with the reaction material. The abovementioned processes form a repetition cycle.
Patent KR-20020057538-A (KR)
Title: Drive Circuit of Active Matrix Formula for Display Device
Inventor: BAE HAN SU
IPC: H01L27/32
Filed: 2001-01-05
Abstract: PURPOSE: A driving circuit of an active matrix method of a display device is provided, which compensates a threshold voltage of a driving transistor effectively according to a deviation of peripheral pixels and improves an emission uniformity between pixels. CONSTITUTION: A current-to-voltage converter(I-to-V converter)(21) detects a driving current(Iout) by being connected to the external of the driving circuit and then converts the driving current into a voltage. A comparator(22) compares the voltage converted by the I-to-V converter with a control voltage(V_ref) which is gray-controlled for an OEL(Organic ElectroLuminescence) to radiate effectively with a fixed luminance. And a Sample and Hold circuit(23) controls a ramp input applied to a data line of a pixel by maintaining a voltage corresponding to the accurate driving current of a driving transistor(P0) driving the pixel through the comparison of the comparator.
Patent KR-20020060451-A (KR)
Title: Method of forming gate electrode
Inventor: HUH HYEONG JO
IPC: H01L21/28
Filed: 2001-01-11
Abstract: PURPOSE: A method for forming a gate electrode is provided to prevent the bad gate pattern on a photoresist process by improving the bad surface morphology of a polysilicon film. CONSTITUTION: An insulation film(110) and the polysilicon film are successively formed on a semiconductor substrate(100). The substrate having the insulation film and the polysilicon film is heat-treated in the hydrogen atmosphere. The gate electrode is formed by patterning the heat-treated insulation film and polysilicon film. The heat treatment is carried out under hydrogen atmosphere at 700-900 deg.C. A surface of the polysilicon film having the bad morphology is uniformed by the heat treatment. A photoresist film is formed on the polysilicon film(125) of good morphology. The gate pattern is formed by exposing and developing the photoresist. Because of the good surface morphology of the polysilicon film, the diffused reflection do not occur when exposing the photoresist film.
Patent KR-20010025731-A (KR)
Title: System servicing advertisement using internet and phone-communication and method therefor
Inventor: KU YONG DUK
Filed: 2001-01-22
Abstract: PURPOSE: The advertising service system and method are provided to enable a user to order to corresponding member store promptly using the telecommunication by distributing function terminals stored by a shorting dial in adjacent house or office based on the designated member store. CONSTITUTION: A plurality of member stores(10) are pays a predetermined member fee to a service offerer(60). The member stores(10) is joined by connecting to a server(61) of service offerer on the internet(50) using one's personal computer(12). A plurality of houses or offices(20) receive a plurality of function terminals(21) by the service offerer(60). The function terminals(21) includes a plurality of shorting dials at a shorting dial displaying unit provided one side a receiver. An advanced/deferred payment selection button selecting a specific telecommunication is provided at the other side of the receiver. The shorting dials is operated by a circuit operation having one touch operation, and automatically transmitted to the corresponding member store. A telephone office(40) contracts in communication with the service offerer(60), and offers a discount money to the service offerer(60) with respect to telephone charges generated by the function terminals(21) through the internet(50).
Patent KR-20020064399-A (KR)
Title: Close process in preform conducting work and apparatus therefor
Inventor: JANG YUN GEUN
IPC: G02B6/02
Filed: 2001-02-01
Abstract: PURPOSE: A close process of a preform manufacture method and an apparatus thereof are provided, which improves a productivity of a product and also reduces a fabrication cost, by reducing a processing time, and also performs a more accurate operation. CONSTITUTION: According to an apparatus for performing a close process among an optical fiber preform manufacture method, a bleed valve(106) exhausts a gas in a deposition tube(102) during the above close process, and a sound pressure providing part(300) providing a sound pressure of a preestablished level into the deposition tube through the above bleed valve. The sound pressure providing part includes a sound pressure generator(310) generating the sound pressure in the deposition tube through the bleed valve by a venturi tube theory according as the gas is flowed in and an MFC(Mass Flow Controller)(320) controlling a gas flux flowed into the sound pressure generator.
Patent KR-20020067159-A (KR)
Title: An investment system and method using finance loan
Inventor: HAN CHAN SOO
Filed: 2001-02-15
Abstract: PURPOSE: A system and a method for an investment using a financial loan are provided to enable an investor having insufficient fund to participate in an investment by receiving loaned money from a financial institution and investing the money in an investment company or a business based on a credit of an investor. CONSTITUTION: Investors(3) are connected to an investment financial service company(5) through the Internet(1). The investment financial service company(5) supplies various kinds of information with respect to an investment attraction company to the investors(3), and sets a limit of loaned money based on a credit of an investor(3). The service company(5) is connected to a financial institution(9) through the Internet(1). In the case that an investor(3) requests a loan investment, the service company(5) estimates a credit of the investor(3), decides a limit of loaned money, and requests the amount of money to the financial institution(9) as loaned money. The service company(5) and the financial institution(9) are connected to an investment company(7) through the Internet(1). The service company(5) receives various kinds of information from the investment company(7) and supplies the information to the investor(3). In the case that a loan is requested from the service company(5), the financial institution(9) transmits loaned money to the investment company(7) as investment money.
Patent KR-20010085529-A (KR)
Title: Process for working up reaction mixtures from carbonylation of haloacetic esters by extraction
Inventor: BAUER FRANK
IPC: C07C69/38
Filed: 2001-02-23
Abstract: PURPOSE: Provided is a treatment method of reacted mixture from carbonylation of halo-acetic acid ester to recover sodium chloride with excellent purity sufficient to use the compound in the chloro-alkali electrolysis by means of amalgam process. CONSTITUTION: The treatment method comprises steps of contacting the material generated from the carbonylation of halo-acetic acid ester defined by a formula(2) by using carbon monoxide and the reaction of R2OH and a basic compound under a presence of transition metal catalyst then phase-separating the contacted material; extracting the aqueous phase; applying an organic extract together with the organic phase to a cleaning process; separating a desired compound defined by another formula(1) from the obtained organic phase; isolating the transition metal from the aqueous phase; vaporizing the obtained solution at atmosphere pressure or vacuum pressure and less than pH7 with or without conducting additional thermo-decomposition step under an acidic medium.
Patent KR-20010095242-A (KR)
Title: Friction-reducing ship and method for reducing skin friction
Inventor: MURAI YUICHI
IPC: F04F5/04
Filed: 2001-04-02
Abstract: PURPOSE: A friction reducing ship and method for reducing frictional resistance is provided to reduce the motive power required for generating the micro-bubbles, and envelope a wider bottom surface of a ship with micro-bubbles, while improving fuel saving brought about by reducing the frictional resistance. CONSTITUTION: A friction reducing ship reduces frictional resistance between an external hull plate(1) and water(W) by ejecting air(A) from the external hull plate into water to generate micro-bubbles(B) on the surface of the external hull plate. A structural feature of the ship is that micro-bubbles are generated by creating a negative pressure region in the water admitted in a water intake opening(2a), disposed below the waterline(WL) in a bow section(1a), so as to eject atmospheric air above the water into the water to generate micro-bubbles(B), and discharging the micro-bubbles together with water to a water discharge opening(2b) provided in a bottom section(1b).
Patent KR-20020005954-A (KR)
Title: Driving Apparatus, and Turn Tripod for Loading and Turning a Digital Camera
Inventor: CHO UN JE
IPC: F16M11/04
Filed: 2001-04-07
Abstract: PURPOSE: A rotating driver for a digital camera is provided to automate a panorama photographing and to simply obtain many panorama images for three dimensional effect, and to easily combine with a three-legged stand between the mount head and the main shaft of the thee-legged stand without deformation. CONSTITUTION: A body(2) of a rotating driver for mounting a digital camera, comprises a housing(21) and a cylinder installing a driving motor(22) inside. The body is divided into a fixing unit fixed to a main shaft(4) of a three-legged stand and a rotating unit rotated by the driving motor with a three-legged mount head(1) on the top. A control box(3) is separately inserted into the body by a pair of inserting bars(35). A lower plate(31) of the control box fixes a control board(33) as a driving circuit, a rechargeable battery(34), a camera adapter and a desktop adapter. An upper plate(32) puts a desktop computer(8) on to control the entire step of a panorama photographing. A power supplying wire(6) is inserted into the body and contacted to the terminal of the control box from the body. Further, a communicating wire(11) is contacted to the terminal of the control box to transmit an image signal from the digital camera.
Patent KR-20010098497-A (KR)
Title: 레이저-표시성 플라스틱
IPC: C08L23/12
Filed: 2001-04-11
Abstract: 본 발명은 도판트(dopant)로서 (i) 알루미늄, 붕소, 티탄, 마그네슘, 구리, 주석, 규소 및 아연으로 구성된 군에서 선택된 하나 이상의 금속 분말 및/또는 반금속 분말 및 (ii) 엽상 규산염에 기초한 하나 이상의 이펙트 안료(effect pigment)를 포함함을 특징으로 하는 레이저-표시성 플라스틱(laser-markable plastics)에 관한 것이다.
Patent KR-20020079240-A (KR)
Title: Coupling structure of hose
Inventor: OH SEUNG GEUN
IPC: F16L33/00
Filed: 2001-04-14
Abstract: PURPOSE: A joint structure of a hose is provided to prevent a hose from twisting by rotating without integrating a connecting bolt or a connecting nut with a connecting pipe if the connecting bolt and the connecting nut are coupled. CONSTITUTION: A joint structure of a hose comprises a connecting pipe(30) and a connecting nut(40). The connecting pipe is composed of a seal maintain portion(34) and a locking stage(36), and the connecting nut is composed of a locking recess(48) in which the locking stage is positioned, and a closing surface(46) in which a packing for sealing is closed. An inserting portion(32) inserted into an inside of a multiple hose is provided with a coupling protrusion at one side of the connecting pipe. The seal maintain portion is extended and formed into one side of the inserting portion, and a plurality of installing recess(38) is formed. A seal maintain ring(70) is installed at the installing recess. A screw thread is formed at an inner diameter of an inlet of the connecting bolt, so that the connecting bolt is coupled.
Patent KR-20020080760-A (KR)
Inventor: LEE YEONG HO
IPC: H01L21/20
Filed: 2001-04-17
Abstract: PURPOSE: A method for compensation of stress in vacuum deposition process of device is provided to prevent damage to a device and to stabilize a fine structure of a subsequent layer on a deposited thin film, by eliminating residual stress generated after the thin film is deposited on the device. CONSTITUTION: A bimetal(3) that makes the device(1) transformed by the stress of the deposited thin film and causes an opposite transformation, and an electrical heater(4) for supplying heat to the bimetal, are sequentially attached to the back surface of a deposition surface of the device. The stress generated between the tin film and the device is eliminated by the stress generated in the bimetal.
Patent KR-20020083363-A (KR)
Title: Supplier of cd for vending slot maching
Inventor: JANG MAN CHEOL
IPC: G07F11/16
Filed: 2001-04-27
Abstract: PURPOSE: Provided is a CD supply system for a vending machine which uses supply pressure of CDs to keep pressure for a tension roll without being related to the accumulation height of the CDs so that it prevents the CDs from being damaged when the CDs are supplied. CONSTITUTION: The CD supply system for the vending machine comprises the parts of: a cabinet(10) which includes a lifter(20) and a CD discharge machine(30); the lifter which includes a lifting screw(21), a screw drive(23) to drive the screw forward or backward, a lifting nut(24) to be moved upward or downward in driving the screw and an elevation sheet(25) to be raised or lowered with a CD storage room(11); the CD discharge machine which includes a push sheet(31) to push the CDs into a slot(13) in forward operation, a decelerated geared motor(33) to be moved forward or backward, a drive sheet(34) to transmit power of the motor into the push sheet and a crank pin to connect a long hole at one side of the push sheet to the drive sheet; a control part which includes a micom, a limit switch(42) to detect a lower post, a limit switch(43) to detect an upper post, a limit switch to detect the embedded CDs and a driving driver; and the tension roll(50) which is placed at the upper part of the cabinet by a bracket and at the front edge of a support body to adjust pressure by an adjusting screw.
Patent KR-20020083398-A (KR)
Title: Safty a pressure cooker
Inventor: JEUN WO SIK
IPC: A47J27/09
Filed: 2001-04-27
Abstract: PURPOSE: An opening/closing apparatus for a lid of a pressure kettle is provided to achieve a safe cooking by precisely sealing steam in the pressure kettle or efficiently discharging steam from the pressure kettle. CONSTITUTION: An opening/closing apparatus for a lid of a pressure kettle includes a pushing section, a lid(2) and a body(1). A cover(5) is provided such that the lid(2) is separated from the body(1) when the pushing section is pushed. A rotating plate is installed at an inner center portion of the cover(5). The rotating plate is connected to the pushing section. A hook(7) is coupled to the rotating plate such that the hook(7) moves forwards or backwards along a guide plate. The body(1) is coupled with the lid(2) by means of a net(20) and a bolt(10). A steam adjusting valve(13) is positioned at the cover(5). The steam adjusting valve(13) is integrally formed with a guide rod.
Patent KR-20010104675-A (KR)
Title: 안테나 설치 장치 및 위성 라디오파 수신 안테나 장치
IPC: H01Q1/12
Filed: 2001-05-15
Abstract: 위성 수신 안테나 장치는 다른 종류의 베란다에 설치될 수 있다.  제1 클램프 부재 및 제2 클램프 부재의 종방향 면이 베란다의 콘크리트 벽을 죄고, 다수의 너트를 이용하여 레버 원리를 적용함으로써, 그리고 제1 및 제2 클램프 부재의 다른 면을 따라 종방향으로 이격된 위치에 있는 다수의 관통 구멍 내로 삽입된 다수의 볼트에 의해, 수신 안테나는 콘크리트 벽에 고정된다. 
     제1 클램프 부재 및 제2 클램프 부재의 종방향의 중심 부분은 격자형 베란다의 격자바를 죄고, 다수의 너트 및 죄인 격자바의 양면의 제1 클램프 부재 및 제2 클램프 부재에 세로로 위치된 관통 구멍 내로 삽입된 다수의 볼트에 의해 수신 안테나는 격자 부분에 고정된다.
Patent KR-20020087677-A (KR)
Title: A sheild case fastner structure
Inventor: KANG DAE YEON
IPC: H05K9/00
Filed: 2001-05-16
Abstract: PURPOSE: A shield case coupling structure is provided to achieve improved productivity by permitting the shield case top and shield case middle to be easily assembled/separated with/from each other. CONSTITUTION: A shield case coupling structure comprises a shield case top(10) arranged at the upper surface of a printed circuit board; and a shield case middle(20) arranged beneath the shield case top, and which has a plurality of holes for coupling with square C-shaped protrusions of the shield case top. The shield case top includes a flat portion having square C-shaped protrusions arranged at the edge of the flat portion; and a support piece formed by partially bending the flat portion in a vertical direction, and which has a plurality of circular protrusions to be coupled to holes of the shield case middle. The shield case middle includes a plurality of first holes for coupling with square C-shaped protrusions of the flat portion of the shield case top; and a plurality of second holes for coupling with circular protrusions of the support piece of the shield case top.
Patent KR-20020088201-A (KR)
Title: A downward flow type water treating device
Inventor: AHN BYUNG GUN
IPC: B01D24/12
Filed: 2001-05-18
Abstract: PURPOSE: A downflow sand filter unit for wastewater treatment is provided, which can wash filter media continuously by downflow through filter media recycling pipe and filter media washing pipe of zig zag type by pneumatic conveying the media. The media recycling pipe is easy to install and maintenance. CONSTITUTION: In a conically bottomed cylindrical housing(1) having an inlet(7) connected to a vertical wastewater flow guide pipe(8) as a tee type at the middle part, a filter media receiving part(3) packaged with filter media(2) is stationed at the bottom, and a filter media washing part(4) is stationed at the top. A filter media redistributor(5) of inverse cone type is set at the top of the vertical wastewater flow guide pipe(8), and a filter media recycling pipe(6) is installed from the bottom of the cylindrical housing(1) to the top of the cylindrical housing(1), to the recycling pipe(6), and a compressed air feeding line(11) is connected to inject air to blow up filter media. The filter media washing pipe(14) of zig zag type is installed at the top of the filter media redistributor(5) thus guiding filter media to flow to the filter media receiving part(3) through a passage, a slot between the inner wall of the cylindrical housing(1) and the edge of the filter media redistributor(5). Water accompanying with the filter media is filtered through the filter(9) and discharged through discharge line(10).